Slight WPM close to harvest

[honeysoi]

Hi all, hope all is well.
Clearly not for me as I'm back, lol.
I am close to harvest (1x ak47 auto, 1x Banana kush auto, 2x3 tent) and decided to whip out my blacklight pen i haven't really used. I have tip burn on on the AK and some leaf damage on the Banana Kush, I believe from pH problems. I immediately noticed the dead spots glowed green which I believe to me normal. After close inspection, I noticed blue around the dead parts. I chopped abit off, looked under a microscope and its some WPM. Here are some pics.

The wpm is not visible to the naked eye.
Since the photos, I've done a defoliation and examined all the leaves with the blacklight. There is only slight wpm on the dead parts and all the rest were clean. These are all removed from the tent. My main concern is being so close to harvest. If there are no signs at harvest is there a reason to worry? From what I've read, wpm actually prefers dry conditions. Will this reappear during drying/curing?
What is my best approach for the next couple weeks before harvest. Thanks.
(By the way my condition are: 25-30°C, 50%RH, great airflow- 3x aci fans, 1 below, 2 above)

 

[Fromunda506]

If you want to treat it with something, zerotol works well and is safe to use at this stage. Especially with the equipment you have, using it sparingly where you see WPM starting should get you over the finish line

 

[honeysoi]

If you want to treat it with something, zerotol works well and is safe to use at this stage. Especially with the equipment you have, using it sparingly where you see WPM starting should get you over the finish line

Thanks, I've read quite a few posts they always just talk about getting it to harvest. Is WPM not a worry post harvest? Since I'm so close that's my main concern

 

[Fromunda506]

Never had it show up while drying if it was clean when I cut it. Good luck. Cheers

 

[honeysoi]

Never had it show up while drying if it was clean when I cut it. Good luck. Cheers

That's good to hear, I will be monitoring them very closely but so far doesn't seem to be spreading.

 

[honeysoi]

Update: just found another leaf with some wpm on the underside. I am unable to get zerotol where I am. I do plan on pulling these a little early based on previous harvests being abit to couch lock. I plan on pulling the Banana Kush in a few days and the AK in a week or so. Unsure on best approach. I have been considering a bud wash but concerned about drenching large colas

 

[GNick55]

Update: just found another leaf with some wpm on the underside. I am unable to get zerotol where I am. I do plan on pulling these a little early based on previous harvests being abit to couch lock. I plan on pulling the Banana Kush in a few days and the AK in a week or so. Unsure on best approach. I have been considering a bud wash but concerned about drenching large colas View attachment 2094945

in all your pictures i don’t see any signs of white powdery mildew,..

 

[honeysoi]

I believe it to be wpm. Here's a photo of that leaf under a blacklight, its only on the top finger

 

[GNick55]

I believe it to be wpm. Here's a photo of that leaf under a blacklight, its only on the top fingerView attachment 2094988

can you look at it with a jewellers loupe?,.

 

[GNick55]

google TMV- tobacco mosaic virus marijuana,..

 

[GNick55]

what’s your environment temp and humidity and feeding practices,..
what light you got and how close?

 

[honeysoi]

I have googled TMV, I believe I had it on a leaf on my first grow. And yes ive looked at it under a microscope, the few parts that show blue definitely looked like wpm. Before that last leaf, I had only spotted very minute amounts with the blacklight around damaged areas on leaves. That leaf is the first thats visible to naked eye.
Temp sits around 25-32°C, RH sits at 50%, great airflow. I water every morning with calmag, canna coco ab.
Lights is 2x VS1000, set at 50% about 1ft above canopy

 

[honeysoi]

I'm hoping to harvest pretty soon so unsure what to do.

 

[honeysoi]

Just got home from work and did another round with the blacklight. Could only find 1 leaf with a small spot underneath. Barely visible to the naked eye, Got rid of it. Unfortunately it was the AK (first spotted on banana kush) so I will need to monitor closely as she has a week or 2 still. I'm happy with the Banana Kush so im going to harvest tomorrow. Assuming I can't find any tomorrow, am I good to chop and process and normal? Anything I need to worry about?

 

[GNick55]

i still don’t think you have wpm from what i can see,.. i have lots of experience with it,..
there’s definitely some sort of stress happening as you have lots of 3 fingered leaves,. but your at the end now,..
so no worries, do a bud wash with 3-5% strength peroxide (get a jug or two 29% strength or stronger and dilute to 3-5%,.. have this in a big enough container/pail/tub too “wash” dunk complete branch under mixture with slight movement for a min or so than do the same with a container of clean water than hang branches somewhere to drip dry (no heat, slight air flow) for a day than put branches into drying area until ready for trimming and storage,..

 

[honeysoi]

i still don’t think you have wpm from what i can see,.. i have lots of experience with it,..
there’s definitely some sort of stress happening as you have lots of 3 fingered leaves,. but your at the end now,..
so no worries, do a bud wash with 3-5% strength peroxide (get a jug or two 29% strength or stronger and dilute to 3-5%,.. have this in a big enough container/pail/tub too “wash” dunk complete branch under mixture with slight movement for a min or so than do the same with a container of clean water than hang branches somewhere to drip dry (no heat, slight air flow) for a day than put branches into drying area until ready for trimming and storage,..

Thanks, I think I'll give the wash a go. Is this a concern with large colas? There's a few decent colas packed pretty well, abit worried about dunking them

 

[honeysoi]

I've also read alot of different things. Some say bud wash with baking soda, citric and h2o2, some say just h202, and the ratios are all over the place. Jorge video says 8 oz 3% into 5 Gallons. Some say 1:4 ratios of 33%. HUGE difference.
I have plenty of Potassium Bicarbonate and citric acid, apparently both kill wpm. If that's the case can I get away with the low h2o2 dose? Only have 24oz of 3%. What are the best dilutions for each of these please? thank you.